Fe(Ⅲ)-5-Br-PADAP络合物光化学还原反应的研究

doi:10.7517/j.issn.1674-0475.2006.04.270

影像科学与光化学 ›› 2006, Vol. 24 ›› Issue (4): 270-275.DOI: 10.7517/j.issn.1674-0475.2006.04.270

Fe(Ⅲ)-5-Br-PADAP络合物光化学还原反应的研究

吴小华, 缪吉根, 陈建荣

浙江师范大学, 化学与生命科学学院, 浙江, 金华, 321004

收稿日期:2006-03-01 修回日期:2006-03-16 出版日期:2006-07-23 发布日期:2006-07-23
通讯作者: 吴小华(1961-), 女, 副教授, 主要从事分子光谱分析, Tel:0579-2283326.
基金资助:
浙江省分析测试基金项目(98061).

Study on the Photoreduction of Fe(Ⅲ)-2-(5-Bromo-2-Pyridylazo)-5-Diethylaminophenol Complex

WU Xiao-hua, MIAO Ji-gen, CHEN Jian-rong

College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, Zhejiang, P.R. China

Received:2006-03-01 Revised:2006-03-16 Online:2006-07-23 Published:2006-07-23

摘要/Abstract

摘要： 研究了溶液酸度、光强度、有机酸及其浓度对Fe(Ⅲ)-5-Br-PADAP络合物光化学还原反应的影响,并对该光化学还原反应的机理作了初步探讨.结果表明,在pH为5.5的HAc-NaAc缓冲溶液中,Fe(Ⅲ)-5-Br-PADAP络合物的光化学还原反应速度较快;光强度增加,该光化学还原反应速度加快;甲酸等有机酸能加速该光化学还原反应;乙二酸、丙二酸能明显抑制该光化学还原反应;能促进反应的有机酸浓度增加,该光化学还原反应的速度加快.

关键词: 铁(Ⅲ), 2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚, 光化学还原反应

Abstract: The effects of solution acidity,light intensity, the presence of specific organic acids and their concentration on the photoreduction of Fe(Ⅲ)-5-Br-PADAP complex were studied.Preliminary investigation was carried out to probe into the reaction mechanism.It was found that Fe(Ⅲ)-5-Br-PADAP complex underwent photoreduction fast at pH 5.5 in HAc-NaAc buffer solution;intensifying the illumination would speed up the reaction;the presence of certain organic acids such as formic acid could promote the photoreduction while oxalic acid and malonic acid prohibited the reaction markedly;increasing the concentration of organic acids that promote the reaction could accelerate the photoreduction.

Key words: iron(Ⅲ), 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol, photoreduction

中图分类号:

吴小华, 缪吉根, 陈建荣. Fe(Ⅲ)-5-Br-PADAP络合物光化学还原反应的研究[J]. 影像科学与光化学, 2006, 24(4): 270-275.

WU Xiao-hua, MIAO Ji-gen, CHEN Jian-rong. Study on the Photoreduction of Fe(Ⅲ)-2-(5-Bromo-2-Pyridylazo)-5-Diethylaminophenol Complex[J]. Imaging Science and Photochemistry, 2006, 24(4): 270-275.

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Fe(Ⅲ)-5-Br-PADAP络合物光化学还原反应的研究

Study on the Photoreduction of Fe(Ⅲ)-2-(5-Bromo-2-Pyridylazo)-5-Diethylaminophenol Complex

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